factorio-scenario-ExpCluster/modules/addons/chat-popups.lua

--- Creates flying text entities when a player sends a message in chat
-- also displays a ping above users who are named in the message
local Game = require 'utils.game'
local Event = require 'utils.event'
local config = require 'config.popup_messages'

local send_text = Game.print_player_floating_text -- (player_index, text, color)

Event.add(defines.events.on_console_chat,function(event)
    local player = Game.get_player_by_index(event.player_index)

    -- Some basic sanity checks
    if not player then return end
    if not event.message then return end

    -- Sends the message as text above them
    if config.show_player_messages then
        send_text(player.index,{'chat-popup.message',player.name,event.message},player.chat_color)
    end

    if not config.show_player_mentions then return end

    -- Makes lower and removes white space from the message
    local search_string = event.message:lower():gsub("%s+", "")

    -- Loops over online players to see if they name is included
    for _,mentioned_player in pairs(game.connected_players) do
        if mentioned_player.index ~= player.index then
            if search_string:match(mentioned_player.name:lower()) then
                send_text(mentioned_player.index,{'chat-popup.ping',player.name},player.chat_color)
            end
        end
    end

end)